What do you think 1969 351w heads are worth that had the following work done? 3 angle valve job. stainless valves,new springs that match the cam, screw in bolts,guide plates,roller rockers and ported with some dome work.
I sold a set a while back. They had the valve job, almost new valves, guides and springs. Kept my guideplates, studs and rockers. Got $300 for the heads and was happy to get that much. Figure you can add $50 for studs/guideplates and $100-$200 for the rockers depending on brand. More if the rockers are new.